It is a short walk from the Reeperbahn hotspot where Liam was partying with Eamonn, 33, and his 18-strong stag group. The video, released by the Lucie Blackman Trust which is supporting the family, shows a mystery passer-by helping Liam after he takes a tumble.

The footage was shot at 2.20am — around 50 minutes after he was last spotted in the Hamborger Veermaster bar on Saturday, February 10.

It captures him failing to get in the office block before walking to nearby Michelwiese Park.

The post, also translated into German, claimed he may have changed out of the brown leather jacket he was last seen in and urged Hamburg residents to check outbuildings or disused sheds for signs of him.

Cops leading the search claimed sniffer dogs latched on to Liam’s scent twice in two different spots.

The hounds first detected his whiff in Baumwall — leading officers along the route where Liam was pictured on the CCTV images.

Police then switched their attention to Buxtehude after the alleged bakery sighting — where the pooches again picked up his scent.

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